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Waiting on a list of Future
...
If you are using Java 8 then you can do this easier with CompletableFuture and CompletableFuture.allOf, which applies the callback only after all supplied CompletableFutures are done.
// Waits for *all* futures to complete and returns a list...
How to get HTTP Response Code using Selenium WebDriver
... Chrome or Firefox in logging mode. I will show you some examples below.
java + Selenium + Chrome
Here is an example of java + Selenium + Chrome, but I guess that it can be done in any language (python, c#, ...).
All you need to do is tell chromedriver to do "Network.enable". This can be done by ...
Get an OutputStream into a String
What's the best way to pipe the output from an java.io.OutputStream to a String in Java?
5 Answers
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Java logical operator short-circuiting
...d so you can skip evaluating the rest of the expressions.
You indicate to Java that you want short-circuiting by using && instead of & and || instead of |. The first set in your post is short-circuiting.
Note that this is more than an attempt at saving a few CPU cycles: in expressions ...
Can I pass an array as arguments to a method with variable arguments in Java?
... is an Object[], so you can also call ezFormat(args) either way.
See also
Java language guide/varargs
Varargs gotchas #1: passing null
How varargs are resolved is quite complicated, and sometimes it does things that may surprise you.
Consider this example:
static void count(Object... objs) {
...
How to make an array of arrays in Java
... by any object with ease.
Hoping this can help someone someday :)
import java.lang.ref.WeakReference;
import java.util.LinkedList;
import java.util.NoSuchElementException;
import java.util.Queue;
/**
*
* @author leBenj
*/
public class Array2DWeakRefsBuffered<T>
{
private final WeakR...
Is Fortran easier to optimize than C for heavy calculations?
...
Yes, in 1980; in 2008? depends
When I started programming professionally the speed dominance of Fortran was just being challenged. I remember reading about it in Dr. Dobbs and telling the older programmers about the article--they lau...
Java Serializable Object to Byte Array
...
If you use Java >= 7, you could improve the accepted solution using try with resources:
private byte[] convertToBytes(Object object) throws IOException {
try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
Obj...
Any shortcut to initialize all array elements to zero?
...t to initialize an one-dimensional array to a different value, you can use java.util.Arrays.fill() (which will of course use a loop internally).
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Pretty-print a Map in Java
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Using Java 8 Streams:
Map<Object, Object> map = new HashMap<>();
String content = map.entrySet()
.stream()
.map(e -> e.getKey() + "=\"" + e.getValue() + "\"")
...